function [result] = hpqr(p, q, r)
%Compute that one function I derived in the homework
result = 1 / ( (r+1)*(q+r+2)*(p+q+r+4)) + 1 / ( (r+1)*(q+r+3)*(p+q+r+4) ) + 1 / ( (r+2)*(q+r+3)*(p+q+r+4) );


